CN2819485Y - Valve controlled sealed lead-acid accumulator safety valve - Google Patents
Valve controlled sealed lead-acid accumulator safety valve Download PDFInfo
- Publication number
- CN2819485Y CN2819485Y CN200520074225.8U CN200520074225U CN2819485Y CN 2819485 Y CN2819485 Y CN 2819485Y CN 200520074225 U CN200520074225 U CN 200520074225U CN 2819485 Y CN2819485 Y CN 2819485Y
- Authority
- CN
- China
- Prior art keywords
- valve
- valve body
- sealed lead
- exhaust port
- acid accumulator
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 239000002253 acid Substances 0.000 title claims abstract description 26
- 238000007789 sealing Methods 0.000 claims abstract description 4
- 239000002775 capsule Substances 0.000 claims description 13
- 238000001914 filtration Methods 0.000 abstract 1
- 230000008646 thermal stress Effects 0.000 abstract 1
- 239000007789 gas Substances 0.000 description 2
- 239000003595 mist Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 239000007963 capsule composition Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 239000012153 distilled water Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 230000008961 swelling Effects 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 238000009736 wetting Methods 0.000 description 1
Classifications
-
- Y02E60/12—
Landscapes
- Gas Exhaust Devices For Batteries (AREA)
Abstract
The safety valve for valve-controlled sealed lead-acid accumulator consists of valve body, valve cover, sealing ring, rubber cap and acid filtering sheet in the top of the exhaust port of the valve body, and explosion-proof sheet, and features that there are annular grooves in the outer side column surface below the upper valve cap of the valve body, and the side wall of the exhaust port and the inner wall of the rubber cap on the valve body have 1 more grooves. The utility model is used for the valve control type sealed lead-acid storage battery, when the temperature in the battery rises to a certain value, the ring groove outside the valve body is broken first because of not bearing the thermal stress, thereby effectively preventing the battery from exploding due to high temperature expansion, and improving the safety; in addition, the combination of the grooves at the joint of the exhaust port and the rubber cap, and the linear contact between the inner side of the rubber cap and the cylindrical surface of the exhaust port enhance the consistency of the opening and closing pressure curve, and improve the flexibility and stability of the safety valve.
Description
Technical field
The utility model relates to a kind of valve controlled sealed lead-acid accumulator safety valve, belongs to the sealed lead acid storage battery field.
Background technology
Along with economic growth and social progress, environmental protection is rooted in the hearts of the people day by day, and in each application, valve-control sealed lead acid battery is progressively replacing traditional open type lead acid accumulator.Relative open type lead acid accumulator, valve-control sealed lead acid battery has safety valve, does not in use have acid mist and overflows, and can not produce harm to people and equipment, and need not to add acid in whole useful life, adds water, promptly so-called " non-maintaining ".Used safety valve mainly acts on and is on the valve-control sealed lead acid battery: in the charging later stage, the amounts of hydrogen that oxygen that produces when galvanic anode and negative electrode produce has little time compound tense more greatly, the interior pressure of battery will raise, when the pressure in the battery was elevated to setting, safety valve can be opened automatically, allowed gas discharge, depress in after the exhaust when dropping to certain value, safety valve just can cut out automatically, has so both guaranteed the safety and the useful life of battery, has avoided environmental pollution again.Safety valve in the past, bonnet lower portion continuous transition on the valve body, when temperature was elevated to certain value in the battery, valve body was expanded by high temperature, just may cause battery explosion, caused serious consequence.In addition, the exhaust outlet of Capsule formula safety valve and Capsule junction switching pressure reduction are bigger, and consistency is bad, makes that the flexibility of safety valve open and close valve and stability are not high.
The utility model content
It is good that the technical problems to be solved in the utility model provides a kind of fail safe, the flexibility of open and close valve and the high valve controlled sealed lead-acid accumulator safety valve of stability.
The technical solution of the utility model is: the valve controlled sealed lead-acid accumulator safety valve is mainly by valve body, valve gap, sealing ring be positioned at the Capsule and the filter acid film at the exhaust outlet top of valve body, burst disk constitutes, improvements are that the outside cylinder of bonnet below on the valve body is provided with cannelure, exhaust outlet sidewall and Capsule inwall are respectively equipped with and are mutually that odd even cooperates and along circumferential uniform groove on the valve body, many 1 of the former groove number of the recessed slot-number ratio of the latter.
Further scheme is: described cannelure is positioned at 13mm place, bonnet below, groove width 0.5～1.5mm, groove depth 0.5～1mm; Groove on the valve body on the exhaust outlet sidewall is 3 or 5, and the groove on the Capsule inwall is 4 or 6.
Adopt above technical scheme, when internal temperature of battery is elevated to certain value, the cannelure that is positioned at the bonnet below on the safety valve valve body at first holds stress that can't stand the high temperature expansion and ruptures earlier, prevent that battery Yin Gaowen from expanding and exploding thereby press in effectively discharging, in order to avoid cause serious consequence, fail safe improves.The exhaust outlet sidewall becomes odd even to cooperate with groove on the Capsule inwall, both guaranteed exhaust sensitivity, can not produce the situation that two or more grooves align again, improve the consistency that opens and closes the line of buckling, Capsule is inboard in the utility model in addition becomes line to contact with the exhaust outlet cylinder, reduce the open and close valve pressure differential, thereby improved the flexibility and the stability of safety valve open and close valve.
Description of drawings
Accompanying drawing is the utility model structural representation.
Embodiment
Consult accompanying drawing, valve gap 1 and valve circle 5 are arranged at the top of the valve body 9 of valve controlled sealed lead-acid accumulator safety valve, and there is sealing ring 6 in the outside, and Capsule 8 is arranged at the exhaust outlet top on the valve body, and there are embedded piece 4, filter acid film 3, burst disk 2 in the Capsule top.The outside cylinder at 2mm place, bonnet below is provided with the cannelure 7 of wide 1mm, dark 0.8mm on the valve body.Circumferentially 3 uniform grooves 12 are arranged on the exhaust outlet sidewall on the valve body, circumferentially 4 uniform grooves 11 are arranged on the Capsule inwall.Capsule is inboard to become line to contact with the exhaust outlet cylinder, and sour mouthful 13 of the filter of valve body lower portion is rounded, and flushes with the valve body bottom, in the filter acid mouth another sheet filter acid film 10 is housed.
With the test cell GFM-300Ah of this safety valve is housed, put into 1m
3In the container, the pH value presents neutrality in the container, complete storage batteries is carried out again the charging of 4h with the 6A electric current, again with wetting litmus paper of pure distilled water and the outstanding 2cm place, top, gas outlet that is put in, last after the 2h, the pH test paper is neutral (pH=7) as a result, illustrates that battery no acid mist in course of normal operation produces.This battery under 55 ℃ of environment, is carried out floating charge under the constant voltage 2.25V current limliting 30A condition, and safety valve is observed battery and is not had swelling in the fracture of cannelure place after 5 months.
Claims (3)
1, a kind of valve controlled sealed lead-acid accumulator safety valve, mainly by valve body, valve gap, sealing ring be positioned at the Capsule and the filter acid film at the exhaust outlet top of valve body, burst disk constitutes, the outside cylinder that it is characterized in that bonnet below on the valve body is provided with cannelure, exhaust outlet sidewall and Capsule inwall are respectively equipped with and are mutually that odd even cooperates and along circumferential uniform groove on the valve body, many 1 of the former groove number of the recessed slot-number ratio of the latter.
2,, it is characterized in that described cannelure is positioned at 1～3mm place, bonnet below, groove width 0.5～1.5mm, groove depth 0.5～1mm by the described valve controlled sealed lead-acid accumulator safety valve of claim 1.
3, by the described valve controlled sealed lead-acid accumulator safety valve of claim 1, it is characterized in that the groove on the exhaust outlet sidewall is 3 or 5 on the valve body, the groove on the Capsule inwall is 4 or 6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200520074225.8U CN2819485Y (en) | 2005-08-03 | 2005-08-03 | Valve controlled sealed lead-acid accumulator safety valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200520074225.8U CN2819485Y (en) | 2005-08-03 | 2005-08-03 | Valve controlled sealed lead-acid accumulator safety valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2819485Y true CN2819485Y (en) | 2006-09-20 |
Family
ID=37005544
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200520074225.8U Expired - Fee Related CN2819485Y (en) | 2005-08-03 | 2005-08-03 | Valve controlled sealed lead-acid accumulator safety valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2819485Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2008124989A1 (en) * | 2007-04-16 | 2008-10-23 | Byd Company Limited | A safety valve for battery |
| CN104779359A (en) * | 2015-04-22 | 2015-07-15 | 台州宏博新能源科技有限公司 | Lead-acid battery safety valve |
| CN106159172A (en) * | 2016-08-31 | 2016-11-23 | 湘潭市电机车厂有限公司 | Valve-control sealed the exempting from of mining tubular type ties up traction accumulator |
| CN108550761A (en) * | 2018-06-21 | 2018-09-18 | 山东圣阳电源股份有限公司 | Lead-acid accumulator and its exhaust valve complement |
-
2005
- 2005-08-03 CN CN200520074225.8U patent/CN2819485Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2008124989A1 (en) * | 2007-04-16 | 2008-10-23 | Byd Company Limited | A safety valve for battery |
| CN104779359A (en) * | 2015-04-22 | 2015-07-15 | 台州宏博新能源科技有限公司 | Lead-acid battery safety valve |
| CN106159172A (en) * | 2016-08-31 | 2016-11-23 | 湘潭市电机车厂有限公司 | Valve-control sealed the exempting from of mining tubular type ties up traction accumulator |
| CN108550761A (en) * | 2018-06-21 | 2018-09-18 | 山东圣阳电源股份有限公司 | Lead-acid accumulator and its exhaust valve complement |
| CN108550761B (en) * | 2018-06-21 | 2024-06-07 | 山东圣阳电源股份有限公司 | Lead-acid storage battery and exhaust valve assembly thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |